Home / 5,429.74-8,143.90-2,309.17

Finding the Fourth Proportional to 5,429.74, 8,143.90 and 2,309.17

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Solution

The fourth proportional to 5,429.74, 8,143.90 and 2,309.17 is: 3,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.74 : 8,143.90 = 2,309.17 : x
  2. Step 2: Convert to fraction form
    5,429.74/8,143.90 = 2,309.17/x
  3. Step 3: Cross multiply
    5,429.74x = 8,143.90 × 2,309.17
  4. Step 4: Simplify right side
    5,429.74x = 18,805,649.56
  5. Step 5: Solve for x
    x = 18,805,649.56/5,429.74
  6. Step 6: Final answer
    x = 3,463.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.